Data Quality Reports for Session: 109152 User: perez Completed: 11/28/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070628.1FKB/MWRP/M1 - Reprocess: Incorrect calibrationfkbmwrpM1.b1
D071009.1FKB/MWRP/M1 - LN2 Calibration-fkbmwrpM1.b1
D071016.1FKB/MWRP/M1 - Reprocess: Updated 30-GHz calibration coefficientfkbmwrpM1.b1


DQRID : D070628.1
Start DateStart TimeEnd DateEnd Time
06/20/2007052006/21/20072000
Subject:
FKB/MWRP/M1 - Reprocess: Incorrect calibration
DataStreams:fkbmwrpM1.b1
Description:
The software was started with the wrong calibration data.
Measurements:fkbmwrpM1.b1:
  • Derived relative humidity(relativeHumidity)
  • Expected root-mean-square error in liquid water content retrieval(liquidWaterContentRmsError)
  • Retrieved water vapor density(waterVaporDensity)
  • Total precipitable water vapor, from microwave radiometer(totalPrecipitableWater)
  • Level of free convection pressure(levelFreeConvectionPres)
  • Lifting condensation level(liftingCondensationLevel)
  • air temperature (NGM250 predicted)(temperature)
  • Derived virtual temperature(virtualTemperature)
  • Retrieved liquid water path using only 23.835 and 30.0 GHz(liquidWaterPath2)
  • Retrieved total precipitable water vapor using only 23.835 and 30.0 GHz(totalPrecipitableWater2)
  • Interpolated water vapor mixing ratio(waterVaporMixingRatio)
  • Expected root-mean-square error in liquid water path retrieval(liquidWaterPathRmsError)
  • Level of free convection(levelFreeConvection)
  • Expected root-mean-square error in liquid water path retrieval using only 23.835
    and 30.0 GHz(liquidWaterPath2RmsError)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved cloud liquid water content(liquidWaterContent)
  • Retrieved liquid water path(liquidWaterPath)
  • Lifting condensation level pressure(liftingCondensationLevelPres)

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DQRID : D071009.1
Start DateStart TimeEnd DateEnd Time
09/17/2007110009/17/20071500
Subject:
FKB/MWRP/M1 - LN2 Calibration-
DataStreams:fkbmwrpM1.b1
Description:
Between 1100 and 1500 there were two calibration attempts.
Measurements:fkbmwrpM1.b1:
  • Dummy altitude for Zeb(alt)
  • Surface absolute temperature at instrument(surfaceTemperature)
  • Expected root-mean-square error in precipitable water retrieval(totalPrecipitableWaterRmsError)
  • lon(lon)
  • Surface water vapor density at instrument(surfaceWaterVaporDensity)
  • Surface relative humidity at instrument(surfaceRelativeHumidity)
  • Level of free convection pressure(levelFreeConvectionPres)
  • Retrieved water vapor density(waterVaporDensity)
  • Convective Available Potential Energy(cape)
  • Equilibrium level(equilibriumLevel)
  • air temperature (NGM250 predicted)(temperature)
  • Derived virtual temperature(virtualTemperature)
  • Frequency(frequency)
  • Interpolated water vapor mixing ratio(waterVaporMixingRatio)
  • Flag indicating moisture sensor status(wetWindowFlag)
  • Retrieved liquid water path(liquidWaterPath)
  • Lifting condensation level pressure(liftingCondensationLevelPres)
  • Expected root-mean-square error in precipitable water retrieval using only
    23.835 and 30.0 GHz(totalPrecipitableWater2RmsError)
  • elevation(elevation)
  • Data quality flags(dataQualityFlags)
  • Derived relative humidity(relativeHumidity)
  • Expected root-mean-square error in liquid water content retrieval(liquidWaterContentRmsError)
  • Total precipitable water vapor, from microwave radiometer(totalPrecipitableWater)
  • lat(lat)
  • Lifting condensation level(liftingCondensationLevel)
  • Cloud base height(cloudBaseHeight)
  • Internal blackbody reference temperature(blackbodyTemperature)
  • Retrieved liquid water path using only 23.835 and 30.0 GHz(liquidWaterPath2)
  • Retrieved total precipitable water vapor using only 23.835 and 30.0 GHz(totalPrecipitableWater2)
  • Time offset of tweaks from base_time(time_offset)
  • azimuth(azimuth)
  • base time(base_time)
  • time(time)
  • Expected root-mean-square error in liquid water path retrieval(liquidWaterPathRmsError)
  • Expected root-mean-square error in water vapor density retrieval(waterVaporDensityRmsError)
  • Level of free convection(levelFreeConvection)
  • Interpolated dewpoint temperature(dewpointTemperature)
  • Expected root-mean-square error in liquid water path retrieval using only 23.835
    and 30.0 GHz(liquidWaterPath2RmsError)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved cloud liquid water content(liquidWaterContent)
  • Zenith-pointing infrared temperature at 10um(infraredTemperature)
  • Surface pressure at instrument(surfacePressure)
  • Equilibrium level pressure(equilibriumLevelPres)
  • Array of heights for the range gates(height)
  • Expected root-mean-square error in temperature retrieval(temperatureRmsError)
  • atmospheric pressure at mean sea level and at tropopause (NGM250 predicted)(pressure)

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DQRID : D071016.1
Start DateStart TimeEnd DateEnd Time
09/17/2007150010/09/20071840
Subject:
FKB/MWRP/M1 - Reprocess: Updated 30-GHz calibration coefficient
DataStreams:fkbmwrpM1.b1
Description:
On 9/17 the instrument was calibrated with liquid nitrogen. For the 30-GHz channel the 
results of calibration were not optimal and were causing a negative bias in the retrieved 
LWP.

On 10/9 the 30-GHz calibration parameters were updated with values derived from tip 
curves.

Data between 9/17 and 10/9 will be reprocessed to correct for the 30-GHz calibration.
Measurements:fkbmwrpM1.b1:
  • Retrieved liquid water path using only 23.835 and 30.0 GHz(liquidWaterPath2)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved liquid water path(liquidWaterPath)

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